Safety-cock.



J. 'WINKLER.

SAFETY GOOK. APPLIOATION FILED JULY 27, 1908.

Patented June 15,1909.

Elm-warez fltmnaga Limp/7% j E Witnesses I the gss,

JOHN WINKLER, OF PHlLADELPHIA, PENNSYLVANIA.

SAFETY-30 3K.

, I Specification of. Letters Patent.

Eetented Tune 15, 1909.

s ucasus filed sni 'sav, 190s. Serial lessee;

To all whom it may concern:

Be it lniown that I, JOHN Vhrsmnn, s citizen of the United. States,residing in the city county of Philadelphia, State of Pen syivenie, haveinvent d s. new and ty-Coclr, or which the following I icetion.

My invention consists of a. safety cock, more particularly for c. gssburner, wherein provision is made for locking the plug in either itsclosed, open or intermediate posi tions, while said plug may be operatedwhen required without possibility of leakage of the locking of the plugpreventing improper turning of the some. I

For the purpose of explaining the invention, the accompanying drawingillustrates s satisfactory reduction of the some to practice, but theimportant thereof may be varied, and so it is to be understood that theinvention is not limited to the specific arrangement and organizationshown and described.

Figure 1 representslp. side elevation of a. safety cock embodying myinvention. Fig. 2 represents s longitudinal section thereof. Fig. 3represents a artiel bottom plan view one of the mom ers of the cock, anda partial horizontal section, on line x-:c, Fig. 3,. Fig. i representsa. side elevation of a. detached member of the cock. 5 represen'ts s topor plan view thereof. Fig. 6 represents a bottom plan view of saidmember, Fig. 7 represents a vertical section of .modii'icstion. 8represents spartial vertical section and a partial side elevation ofanother modification.

Similar letters of reference indicate corresponding ports in thefigures.

Referring to the drewingr-A designates the body of a cock, and B theplug therein, for opening endclosing the passage through the cock asosuolin such cases. Connected with said plug B is stem C, which extendsthrough the wall D of the body A, and enters the sleeve E, which isadapted to slide on said stein it being noticed that said stein Csngulm' in cross section, and the. opening in us top 'wall of the sleevewhichrcceivcs ssid'stein' is also of angular form, so that whenthesleeve is rotated-its motion will be communicated to the stem C sindconsequently to the plug'B, whereby the latter may be turned for openingand closing pur noses as above stated. Within thesleeveinstrumentelities is the chamber 1 in which is contained the spring G,which encircles the portion of the stem 0 which occupies said chamberand has its upper end bearing against the top wall H of said chamber,and has its lower end seated upon the washer J, which is fitted on thelower portion of the stem 0 and held thereon by the screw J, whose shankenters said stem and whose head bears against said Washer, the effect ofwhich is apparent 0n reference to Fig. 2, it being noticed that thelower portion of the sleeve E is adapted to slide freely over theperiphery of said Washer es the former is lowered and raised. The plug Bis of inverted conical form so that the spring always exerts a downwardpressure thereon, even when the sleeve is operated ,to be interlockedand it is held gas-tight in place without the usual washer and screw. inthe under face of the wall D of the body A, is a series of depressionsK, which are so ranged in circular order thereon, and either of them isadapted to receive the nipple or stud L, relatively to the closed, openor intermediate condition of the plug B, said nipple or studprojectingfrom the Wall H of the sleeve E. The lower portion of said chamber iswidened, forming a shoulder which, when the sleeve is depressed, abutsthe washer J and so limits the descent of the sleeve, whereby the stud Lis fully withdrawn from the opening K which it occupies without loweringsaid sleeve to further improper extent.

The operation is as follows z-l/Vhen it is desired to close or partlyclose the cock, it being shown open in Fl 2, the sleeve E is moved onthe stem C, w ereby the nipple L is withdrawn from depression K, whichit occupied and which held the plug in the open condition of the cook,the spring G being compressed by the motion of the sleeve. The plug isthen turned to the required extent by means of the sleeve E, when thelatter is let go, and the-s ring G by its expansion then returns the "scove to its normal position, plscin the ni )ple L in. the relativedepression l whereby the sleeve is locked on the body A, and as the luis controlled by said sleeve, the plug is u so locked, and impropermovement of the plug is prevented. When it is desired to open or partlyopen the cock, the sleeve is moved again, whereby it is unlocked andthen rgmoted in the proper direction to the required extent, when it islet go,

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